Hong Kong District Feels Drop in Mainland Shoppers

Lower rents as sales drop could mean fewer drugstores in Causeway Bay

HONG KONG—A drop in mainland Chinese visitors has put a dampener on store rents in one of Hong Kong’s shopping districts, potentially changing up a retail mix that had catered heavily to mainland shoppers.

In the prime shopping district of Causeway Bay, drugstores—where mainland visitors pack rollaway suitcases with fish-oil capsules, baby formula and beauty face masks—as well as Rolex-selling stores and branches of Tiffany and Burberry had proliferated with the growing flow of customers from across the border in recent years,...